Merge "Add a boolean flag to show or hide Private DNS in Network & internet."

src/com/android/settings/network/PrivateDnsPreferenceController.java

@@ -80,7 +80,9 @@ public class PrivateDnsPreferenceController extends BasePreferenceController
 
     @Override
     public int getAvailabilityStatus() {
-        return AVAILABLE;
+        return mContext.getResources().getBoolean(R.bool.config_show_private_dns_settings)
+                ? AVAILABLE
+                : UNSUPPORTED_ON_DEVICE;
     }
 
     @Override